<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <style>
    
  </style>
</head>
<body>
  
</body>
<script>

  var b = 10;
  console.log( b );


  console.log("====以上不存在隐式类型转换=====")


  var a = 10;
  // a = a + 5;
  // a += 5;
  // a -= 5;
  a *= "5";
  console.log(a);


  // 参考算术运算符
  
</script>
</html>